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Finding the Fourth Proportional to 7,194.92, 9,930.46 and 4,540.54

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Solution

The fourth proportional to 7,194.92, 9,930.46 and 4,540.54 is: 6,266.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,194.92 : 9,930.46 = 4,540.54 : x
  2. Step 2: Convert to fraction form
    7,194.92/9,930.46 = 4,540.54/x
  3. Step 3: Cross multiply
    7,194.92x = 9,930.46 × 4,540.54
  4. Step 4: Simplify right side
    7,194.92x = 45,089,650.85
  5. Step 5: Solve for x
    x = 45,089,650.85/7,194.92
  6. Step 6: Final answer
    x = 6,266.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.